Why didn't the Satarran MacDuff make himself Captain instead of First Officer? For that matter, why didn't he have a few of his friends along on the mission in other key places?

When Riker says there is no voice interface to the computer, LaForge says that there is no interface, period. He then goes on to use the work station behind him to use the computer. Doesn't this count as an interface?

And I don't mean to be nasty, but does anybody else find it hard to believe that Troi beats Data at chess?

Great Moment :

Lots of great moments in this one - the Enterprise blasting through the Lysian defences, Riker and Ro getting together and Troi and Ro making fun of him about it later... but my favourite is how Worf automatically assumes that he is in charge after the crew lose their memories.

Body Count :

Fifty three people on the Lysian destroyer.

Factoid :

The Lysian command station is a reuse of the Edo God model from season one.

Plotline

The entire Enterprise crew lose their memories during an attack by an alien ship. Afterwards, they are convinced that the Federation is at war with the Lysians.